Wind-wheel



(No Model.)

M. G. ROBBINS.

WIND WHEEL.

No. 449,589. Patented Mar. 31,1891.

Wiigzsses Y 193295? lull/WW5 V 1% m lflnjzys w UNITED STATES PATENT OFFICE.

MICHAEL O. ROBBINS, OF FREEMAN, MISSOURI.

W'lND-WHEEL.

SPECIFICATION forming part of Letters Patent No. 449,589, dated March 31, 1891.

Application filed January 21, 1891- $erial No. 378,576. (No model.)

To all whom, it may concern.-

Be it known that I, MIoHAEL O. ROBBINS, a citizen of the United States, residing at Freeman, in'the county of Cass and State of Missouri, have invented a new and useful lVind-Wheel, of which the following is a specification.

The invention relates to improvements in wind-wheels.

The object of the present invention is to simplify and improve the construction of wind-wheels, and to enable the blades to be readily removed when broken or injured and quickly replaced by new ones without disturbing the other parts of the wheel.

The invention consists in the construction and novel combination and arrangement of parts hereinafter fully described, illustrated in the accompanying drawings, and pointed out in the claim hereto appended.

In the drawings, Figure 1 is a perspective View of a section of awind-wheel embodying the invention. Fig. 2 is a sectional View taken transversely of the blades. Fig. 3 is a sectional View taken longitudinally of the blade. Fig. 4 is an enlarged section taken through one of the blades of the wheel above one of eye-bolts.

Referring to the accompanying drawings, 1 designates a section of awind-wheel, which has its blades 2 secured to a frame composed of radial spokes 3 and inner and outer bars I and 5, connecting the spokes and bracing the same. The spokes 3 are designed to be secured to a suitable hub, and the bars eand 5 are secured to the spokes by knees 6,which are arranged on the angles formed by the bars and spokes and secured to the same by bolts '7.

The outer bars 5 are connected by plates 8, ar ranged on the outer faces of the same and secured to the ends thereof by bolts 6, which pass through the arms of the knees. The blades 2 of the wheel are arranged at an angle in the usual manner, and are secured to the inner and outer bars by angle hook-bolts 9, which have their outer portions 10 arranged at an angle to the inner portion 11 or bolt proper, which passes through the bar and has its end threaded and engaged by a nut 12 in the usual manner. The outer portion or hook 10 engages a blade and partially encircles the same and securely fastens the blade to the frame. By this construction the blades can be readily removed when broken or otherwise injured, and can quickly be replaced by new ones without disturbing the adjacent blade or necessitating separation of the parts of the frame.

What I claim is- In a wind-wheel, the combination of a suitable frame, the blades, and the angle hookbolts having the inner portions 11, forming bolts proper and secured to the frame by nuts or their equivalents, said angle hook-boltsbeing provided with an outer portion or hook 10, arranged at an angle to the inner portion and partially encircling the blade and securing the same to the frame, substantially as described.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in presence of two witnesses.

MICHAEL C. ROBBINS.

Witnesses:

C. O. CABLE, H. A. HART. 

